/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2013, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.classic.util;

import ch.qos.logback.core.CoreConstants;

/**
 * Utility class for analysing logger names.
 */
public class LoggerNameUtil {


  public static int getFirstSeparatorIndexOf(String name) {
    return getSeparatorIndexOf(name, 0);
  }

  /**
   * Get the position of the separator character, if any, starting at position
   * 'fromIndex'.
   *
   * @param name string to search
   * @param fromIndex starting search index
   * @return position of separator
   */
  public static int getSeparatorIndexOf(String name, int fromIndex) {
    int dotIndex = name.indexOf(CoreConstants.DOT, fromIndex);
    int dollarIndex = name.indexOf(CoreConstants.DOLLAR, fromIndex);

    if (dotIndex == -1 && dollarIndex == -1) return -1;
    if (dotIndex == -1) return dollarIndex;
    if (dollarIndex == -1) return dotIndex;

    return dotIndex < dollarIndex ? dotIndex : dollarIndex;
  }

}
